How We Research
Updated: 2026-09-28 · 6 min read · Independent comparison
If you want active noise cancelling with over-ear comfort and the longest possible time between charges, choose Wentronic Y04; if you need something pocketable for workouts and calls, with better water protection and newer Bluetooth, choose AOSRAU Earbuds.
• Wentronic Y04 — biggest strength: Real active noise cancelling with multiple microphones, plush over-ear cushions, a foldable frame and up to 48 hours of playtime on one charge.
• Wentronic Y04 — biggest trade-off: It's a full-size over-ear headphone at 0.6 kg, so it's bulkier than earbuds, and its Bluetooth spec is one step behind the AOSRAU pair.
• AOSRAU Earbuds — biggest strength: Bluetooth 5.4, four ENC mics for calls, an IP7 waterproof build and a USB-C case with an LED battery readout — a lot of practical features in a tiny package.
• AOSRAU Earbuds — biggest trade-off: Only passive noise cancellation, and each bud runs about 8 hours before it needs the case again.
• Pick Wentronic Y04 if you want immersive listening on planes, trains and open offices without clamping anything into your ear canals.
• Pick AOSRAU Earbuds if you want a sweat-friendly, always-in-your-pocket pair for running, gym sessions and voice calls.
The Y04 is the "settle in and disappear into the music" option. Its headline feature is genuine active noise cancellation built around multiple microphones, which is the kind of design you want when the noise around you is constant — a subway car, a busy street, a plane cabin. That's a different job from simply sealing your ear canal, and it's the main reason someone would pick a headphone like this over a pair of buds. The large dynamic drivers cover a 20 Hz to 20,000 Hz range, and Wentronic tunes them for balance: punchy bass that doesn't swallow the mids, natural vocals, crisp treble. For podcasts, long albums and background listening during a workday, that's a sensible, non-fatiguing profile.
Comfort and battery are where it earns its place. The memory foam cushions are wrapped in soft protein leather, and at 48 hours of continuous playtime per charge, you can genuinely take a week of commutes out of a single top-up. The foldable structure means it collapses into a backpack or suitcase instead of riding on your neck, and there's a 3.5 mm jack as a wired fallback when you'd rather not think about Bluetooth at all. Controls are push-button, which some people prefer over touch because you always know when you've pressed something.
Who should skip it? Anyone who wants earbuds. If you run, lift, or take calls while moving, a 0.6 kg over-ear headphone in purple plastic is the wrong shape for the job, and there's no waterproofing rating here to lean on. It's also the older Bluetooth generation of the two, so if having the newest wireless chip matters to you, that's a point against it.
The AOSRAU pair is built for people who live with earbuds in. Bluetooth 5.4 is the newest spec in this comparison, with a stated range of up to 15 meters and support for the usual HSP, HFP, A2DP and AVRCP profiles, so calls and audio streaming are both covered. Pairing is the grab-and-go kind: take them out of the case after the first setup and they connect on their own. Each bud gives you about 8 hours, and the case stretches that to 48 hours total, with a USB-C port that tops the case up in roughly an hour and an LED indicator so you can see where you stand before you leave the house.
The 14.2 mm dynamic drivers are large for in-ears, and combined with the four ENC microphones, the pitch here is clearly two-fold: HiFi-style sound and clear voice pickup. In my view, that makes these especially appealing if you spend a lot of the day on calls — the ENC mics are aimed at keeping your voice intelligible rather than silencing the world around you.
And that's the honest caveat: noise control is passive only. You get the natural isolation of an in-ear seal, not active cancellation, so a loud engine or a packed train will still get through. What you do get is ruggedness: an IP7 waterproof rating, sealed surfaces to keep sweat and rain out, and an internal nano-coating for moisture protection. Add lightweight ergonomics, touch controls for calls, tracks, volume and voice assistants, and Android 5.0 / iOS 9.0 compatibility, and you have a pair that's genuinely happy at the gym, on a run, or on a bike path.
Who should skip it? If your priority is blocking out a noisy commute rather than powering through it, the lack of ANC is a real limitation — that's the Y04's territory. Anyone who dislikes touch controls, or who wants a headband-style fit, should look elsewhere too.
• Best for noise cancellation → Wentronic Y04. Active noise cancelling with multiple mics versus passive isolation on the AOSRAU pair. That's not a close call.
• Best for battery life → Wentronic Y04, narrowly. 48 hours on a single charge, no case required. The AOSRAU matches 48 hours total, but only about 8 hours per bud before it goes back in the case.
• Best for workouts and rain → AOSRAU Earbuds. IP7 waterproofing, sealed surfaces and a nano-coating versus no water rating on the Y04.
• Best for calls → AOSRAU Earbuds. Four ENC microphones and touch controls put call handling front and center; the Y04's button controls are simpler but its mic setup is described for noise reduction, not voice pickup.
• Best for travel comfort → Wentronic Y04. Memory foam and protein leather cushions for hours-long wear, plus a foldable frame that packs flat. The AOSRAU wins on portability, not on marathon comfort.
• Best for the newest wireless tech → AOSRAU Earbuds. Bluetooth 5.4 with a 15 m range, versus Bluetooth 5.3 on the Y04.
• Best for wired listening → Wentronic Y04. A 3.5 mm jack is there when you want it; the AOSRAU has no jack at all.
• Best for a compact everyday carry → AOSRAU Earbuds. A charging case with an LED readout slips into a pocket in a way a full-size headphone never will.
I'd buy the Wentronic Y04. In my opinion, the combination of active noise cancelling, memory foam over-ear comfort, 48 hours per charge and a foldable frame is simply harder to replicate — you can't add ANC to the AOSRAU buds, but you can always carry a smaller pair alongside a headphone. I'd only switch my recommendation if your routine is built around running, gym work or taking calls on the move, because that's exactly where the AOSRAU's IP7 rating, Bluetooth 5.4 and four ENC mics make it the more sensible pick. Check the current price on Amazon for both before you commit, since that's the one variable that can flip this decision.
FAQ
No. The Wentronic Y04 has active noise cancellation with multiple microphones. The AOSRAU earbuds rely on passive noise cancellation — the in-ear seal itself. For blocking engine drone or office chatter, the Y04 is the stronger design.
That's total playtime with the charging case. Each bud gives about 8 hours per charge, and the case brings the combined figure to 48 hours. The Wentronic Y04 delivers up to 48 hours on its own single charge, no case needed.
The AOSRAU earbuds. They're IP7 waterproof, sealed against sweat and rain, and coated internally to protect against moisture. The Wentronic Y04 has no water-resistance rating and a 0.6 kg over-ear build, so it's a poor fit for training.
Yes. It has a 3.5 mm jack alongside wireless Bluetooth 5.3. The AOSRAU earbuds are wireless only — there's no jack on them at all.
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